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Step-by-step builds with wiring, code and a parts list you can add to your cart in one tap.
Intermediate
Line Follower Robot
A two-sensor robot that follows a black line on a white surface - the classic first robotics build.
Robotics · about 180 min IntermediateObstacle Avoiding Car
An ultrasonic sensor on a servo scans for obstacles; the car backs up, looks left and right and picks the clearer way.
Robotics · about 240 min BeginnerUltrasonic Distance Meter
Measure distance with an HC-SR04 and show it on a 16x2 I2C LCD. A perfect first sensor project.
Arduino · about 45 min BeginnerAutomatic Plant Watering
A soil-moisture sensor switches a relay to run a small pump whenever the soil gets dry.
Arduino · about 90 min IntermediateESP32 Weather Display
Read temperature and humidity with a DHT22 and show it on an OLED. Ready to extend to Wi-Fi dashboards.
IoT · about 75 min AdvancedSmart Home Relay Controller
Control four appliances from your phone with an ESP32 and a 4-channel relay board.
Smart Home · about 150 min